Some analysts believe that Pepsi has a shot at surpassing Coca-Cola soon, but not by selling more soda. Pepsi also has a broad lineup of snack brands like Doritos, Cheetos, and Lay's Potato Chips.

Pepsi is buying ... into the prebiotic soda industry, which has grown in recent years with the popularity of brands like Olipop, Culture Pop and most recently, Coca-Cola's Simply Pop.